Hyperthermia
Hyperthermia
Body temperature is usually regulated within narrow limits through the coordinating actions of a centre for temperature control ("thermostat"), located in the hypothalamus (anterior-preoptic area), and effector mechanisms (shivering, sweating, panting, vasoconstriction, vasodilation), controlled by pathways located in or running through the posterior hypothalamus and peripherally in the autonomic nervous system. Lesions of the anterior hypothalamus (e.g., trauma, ischemia, inflammation, tumor) may result in hyperthermia (cf. hypothermia). Other recognized causes of hyperthermia include:
Infection: bacteria, viruses (pyrogens, e.g., interleukin-1) Malignant hyperthermia
Neuroleptic malignant syndrome (hyperthermia, rigidity, autonomic dysfunction)
Heatstroke Hyperthyroidism Phaeochromocytoma crisis.
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